I was at a museum not too long ago and came across an interesting map. It was a Nazi-era map of the world. It had the worldwide ethnic German population among other things. It also had certain points of strategic importance marked across the entire globe. It included things such as widely used shipping lanes, cities with large populations, and islands that could provide a stepping stone to certain continents. I have yet to be able to find it on the internet and was curious if anyone else had come across one that was similar to what I described.